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Finding the Fourth Proportional to 556,923.56, 768,555.27 and 302,274.77

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Solution

The fourth proportional to 556,923.56, 768,555.27 and 302,274.77 is: 417,139.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,923.56 : 768,555.27 = 302,274.77 : x
  2. Step 2: Convert to fraction form
    556,923.56/768,555.27 = 302,274.77/x
  3. Step 3: Cross multiply
    556,923.56x = 768,555.27 × 302,274.77
  4. Step 4: Simplify right side
    556,923.56x = 232,314,863,628.76
  5. Step 5: Solve for x
    x = 232,314,863,628.76/556,923.56
  6. Step 6: Final answer
    x = 417,139.59

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.